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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562922030320</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-191</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Безопасность ядерных реакторов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Safety of Nuclear Reactors</subject></subj-group></article-categories><title-group><article-title>Механизмы развития продольных трещин в оболочках твэлов при скачках мощности</article-title><trans-title-group xml:lang="en"><trans-title>Mechanisms of the Cladding Tubes Axial Cracking in Power Ramp Tests</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 123060</p></bio><bio xml:lang="en"><p>Moscow, 123060</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плясов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Plyasov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва, 123060</p></bio><bio xml:lang="en"><p>Moscow, 123060</p></bio><email xlink:type="simple">alex_plyasov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Высокотехнологический научно-исследовательский институт неорганических материалов им. академика А.А. Бочвара (АО “ВНИИНМ”)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>SC Bochvar High-Tech Research Institute of Inorganic Materials (VNIINM)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2023</year></pub-date><volume>14</volume><issue>2</issue><fpage>119</fpage><lpage>130</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Новиков В.В., Плясов А.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Новиков В.В., Плясов А.А.</copyright-holder><copyright-holder xml:lang="en">Novikov V.V., Plyasov A.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/191">https://npe.elpub.ru/jour/article/view/191</self-uri><abstract><p>В начале 1990-х гг. в АО “ГНЦ НИИАР” совместно с АО “ВНИИНМ” проводились работы по облучению в реакторе МИР экспериментальных твэлов с оболочкой из сплава Э110 и различными топливными композициями. При повторном изучении результатов этих работ было обнаружено, что за время испытаний твэлы несколько раз оказывались в условиях скачка мощности. Как следствие, отдельные твэлы разгерметизировались, причем оболочка одного из них разрушилась путем распространения продольной длинной трещины. В настоящей работе представлены ранее не публиковавшиеся результаты послереакторных исследований этих разгерметизированных твэлов и проанализированы возможные механизмы разрушения оболочки путем распространения длинной продольной трещины. Показано, что ключевыми факторами, влияющими на образование длинных продольных трещин на оболочках при скачках мощности, являются гидридное охрупчивание и радиационное упрочнение. Однако, имеющиеся к настоящему времени данные не позволяют заключить, какой из рассмотренных механизмов разрушения реализовался в ходе эксперимента.</p></abstract><trans-abstract xml:lang="en"><p>In the early 1990th the research program to investigate experimental fuel rods with different fuel compositions and claddings in the research reactor MIR was carried out by JSC “SSC Research Institute of Atomic Reactors” and JSC “VNIINM”. Reexamination of the program reports containing results of postirradiation tests allows ascertaining that some rods with the zirconium alloy E110 cladding tubes were subjected to the power ramp conditions. As a result some rods failed, but one of them demonstrated axial cracking from one end to the other. Unpublished results of the damaged fuel rods inspection are presented here. Different mechanisms of the cladding tubes axial cracking have been analyzed. It is shown that the key factors for axial cracking of claddings after power ramps are hydrogen embrittlement and radiation hardening of a material. However, to the moment it is not enough information to exactly select which mechanism of cladding failure was realized.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>скачок мощности</kwd><kwd>оболочка твэла</kwd><kwd>циркониевые сплавы</kwd><kwd>Э110</kwd><kwd>продольная трещина</kwd><kwd>механизмы растрескивания</kwd><kwd>водородное охрупчивание</kwd><kwd>замедленное гидридное растрескивание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>power ramp</kwd><kwd>fuel cladding</kwd><kwd>zirconium alloy</kwd><kwd>E110</kwd><kwd>longitudinal crack</kwd><kwd>mechanisms of embrittlement</kwd><kwd>hydrogen embrittlement</kwd><kwd>delayed hydride cracking</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Sakurai H., Wakashima Y. et al. // Proc. Int. Topical Meeting on LWR Fuel Performance. P. 515.</mixed-citation><mixed-citation xml:lang="en">Sakurai H., Wakashima Y. et al. // Proc. Int. Topical Meeting on LWR Fuel Performance. P. 515.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Shimada S. et al. // J. Nucl. Mater. 2004. V. 327. P. 97.</mixed-citation><mixed-citation xml:lang="en">Shimada S. et al. // J. Nucl. Mater. 2004. V. 327. P. 97.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Hayashi H., Ogata K., Baba T., Kamimura K. // J. Nucl. Sci. Technol. 2006. V. 43. P. 1128.</mixed-citation><mixed-citation xml:lang="en">Hayashi H., Ogata K., Baba T., Kamimura K. // J. Nucl. Sci. Technol. 2006. V. 43. P. 1128.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Novikov V.V., Bibilashvilli Yu.K., Mikheev E.N. et al. // At. Energy. 2008. V. 105 (4). P. 262.</mixed-citation><mixed-citation xml:lang="en">Novikov V.V., Bibilashvilli Yu.K., Mikheev E.N. et al. // At. Energy. 2008. V. 105 (4). P. 262.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Sakamoto K., Nakatsuka M., Higuchi T. // J. ASTM Int. 2010. V. 7 (6). P. JAI102938. https://doi.org/10.1520/JAI102938</mixed-citation><mixed-citation xml:lang="en">Sakamoto K., Nakatsuka M., Higuchi T. // J. ASTM Int. 2010. V. 7 (6). P. JAI102938. https://doi.org/10.1520/JAI102938</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Cox B. Report AECL-3551. 1970. Chalk River: Atomic Energy of Canada Limited.</mixed-citation><mixed-citation xml:lang="en">Cox B. Report AECL-3551. 1970. Chalk River: Atomic Energy of Canada Limited.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Park S.U. et al. // J. Nucl. Mater. 2008. V. 372. P. 293.</mixed-citation><mixed-citation xml:lang="en">Park S.U. et al. // J. Nucl. Mater. 2008. V. 372. P. 293.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Novikov V.V. // At. Energy. 1991. V. 71. P. 557.</mixed-citation><mixed-citation xml:lang="en">Novikov V.V. // At. Energy. 1991. V. 71. P. 557.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Motta A.T. et al. // J. Nucl. Mater. 2019. V. 518. P. 440.</mixed-citation><mixed-citation xml:lang="en">Motta A.T. et al. // J. Nucl. Mater. 2019. V. 518. P. 440.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Puls M.P. The Effect of Hydrogen and Hydrides on the Integrity of Zirconium Alloy Components. Delayed Hydride Cracking. 2012. London: Springer-Verlag.</mixed-citation><mixed-citation xml:lang="en">Puls M.P. The Effect of Hydrogen and Hydrides on the Integrity of Zirconium Alloy Components. Delayed Hydride Cracking. 2012. London: Springer-Verlag.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Sakamoto K., Nakatsuka M., Higuchi T. // Proc. Water Reactor Fuel Performance Meeting (WRFPM2008). 2008. Seul, South Korea.</mixed-citation><mixed-citation xml:lang="en">Sakamoto K., Nakatsuka M., Higuchi T. // Proc. Water Reactor Fuel Performance Meeting (WRFPM2008). 2008. Seul, South Korea.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Raynaud P.A., Koss D.A., Motta A.T. // J. Nucl. Mater. 2012. V. 420. P. 69.</mixed-citation><mixed-citation xml:lang="en">Raynaud P.A., Koss D.A., Motta A.T. // J. Nucl. Mater. 2012. V. 420. P. 69.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Chu H.C., et al. // J. Nucl. Mater. 2007. V. 362. P. 93.</mixed-citation><mixed-citation xml:lang="en">Chu H.C., et al. // J. Nucl. Mater. 2007. V. 362. P. 93.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Alvarez-Holston A-M., Lysell J., Grigoriev V. // Proc. LWR Fuel Performance Meeting. 2007. San Francisco, CA, USA. P. 1080.</mixed-citation><mixed-citation xml:lang="en">Alvarez-Holston A-M., Lysell J., Grigoriev V. // Proc. LWR Fuel Performance Meeting. 2007. San Francisco, CA, USA. P. 1080.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Min S.-J., Kim M.-S., Kim K.-T. // J. Nucl. Mater. 2013. V. 441. P. 306.</mixed-citation><mixed-citation xml:lang="en">Min S.-J., Kim M.-S., Kim K.-T. // J. Nucl. Mater. 2013. V. 441. P. 306.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Yagnik S.K., Chen J-H., Kuo R-C. // Proc. 17th Int. Symposium on Zirconium in the Nuclear Industry.</mixed-citation><mixed-citation xml:lang="en">Yagnik S.K., Chen J-H., Kuo R-C. // Proc. 17th Int. Symposium on Zirconium in the Nuclear Industry.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Markelov V.A., Gusev A.Yu., Saburov N.S. et al. // Deform. Razrush. Mater. 2012. V. 11. P. 42 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Markelov V.A., Gusev A.Yu., Saburov N.S. et al. // Deform. Razrush. Mater. 2012. V. 11. P. 42 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kubo T., Kobatashi Y., Uchikoshi H. // J. Nucl. Mater. 2012. V. 427. P. 18.</mixed-citation><mixed-citation xml:lang="en">Kubo T., Kobatashi Y., Uchikoshi H. // J. Nucl. Mater. 2012. V. 427. P. 18.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Huang F.H., Mills W.J. // Metall. Trans. A. 1991. V. 22. P. 2049.</mixed-citation><mixed-citation xml:lang="en">Huang F.H., Mills W.J. // Metall. Trans. A. 1991. V. 22. P. 2049.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Timoshenko S.P., Goodier J.N. Theory of Elasticity. 2010. India: McGraw-Hill Education.</mixed-citation><mixed-citation xml:lang="en">Timoshenko S.P., Goodier J.N. Theory of Elasticity. 2010. India: McGraw-Hill Education.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
